I just tried a fresh download and then unzipped the folder. Following that, I ran the executable and it booted up fine. Maybe try a fresh download and unzipping it again? Does Renpy give you any errors or debug info?
I don't know about the previous person but I did try that and it still doesn't work. The game just doesn't start, no error, no info, no message, just nothing.
I have an inkling of a feeling it might be your system not playing nicely with the presplash .png images. Try deleting both presplash.png and presplash2.png from the /game folder and see if that doesn't fix it.
